Former premier Najib Abdul Razak declined to weigh in on the sex clip implicating Economic Affairs Minister Mohamed Azmin Ali.

"Why ask me? Do not ask me,” he said when journalists quizzed him on the matter as he was leaving the Kuala Lumpur High Court this evening.

"Ask the person concerned. I am not responsible for anything," added a smiling Najib.

The former premier was attending his trial for alleged abuse of power, graft and money laundering of RM42 million from SRC International Sdn Bhd.

Earlier, Azmin denied having anything to do with the sex video, calling it a diabolical plot to destroy his political career.